Forest fires occur as a natural phenomenon or as a result of human activity, which is also the main cause of their presence in continental forests, and the increasing number of abandoned rural households in the rural area brings much greater problems in the future and certainly deserve special attention and research of their consequences. The "Trepča" economic unit is highly fragmented with numerous abandoned pastures that regularly fall, while the Karlovacka and Sisacko - moslavacka counties that were affected by war activities are still at greater risk, and forest systems that mostly form single beech forests on larger complexes They are particularly sensitive. Each fire has an unimaginable impact on habitat and biodiversity in which it occurs, habitat destruction, reduced ecosystem services provided by forests and migration of species that depend on it. Although the negative consequences are visible, positive can only be observed in two or three vegetation years when pioneering species and species living in this habitat in a common correlation create the conditions for a new beginning and the development of a completely different ecosystem that may be more resistant to the faster Changes in the environment. This is why fires can have a devastating and possibly positive impact on continental forests in the hills.